Window sash lock



Feb. 2, 1932. POOLE 1,843,402

WINDOW SASH LOCK Filed July 20, 1929 2 Sheets-Sheet l In bentor JIZZ'ZZZ'CW-JOOZQ "Attorney r @QM Feb. 2,1932. w. D. POOLE 1,843,402

' WINDOW SASH LOCK Filed July 20, 1929 2 Sheets-Sheet 2 I venior w'iizii'fl 1 002? M A ttomey Patented Feb. 2, 1932 TES WILLIS nrooLE, or GREENSBORO, NORTH CAROLINA wnvnow SASH LOCK Application filed July 20, 1929. Serial No. 379,821.

The present invention relates to improvements in window sash locks and has for an object the provision of a device of this character so constructed that it will permit the upper and lower sashes of a window to be interlocked whereby the respective sashes may be partially opened and locked without any fear of intruders being at liberty to and illustrated in the accompanying drawings, in which: 7

Figure 1 is a fragmentary side elevation of a window comprising the present invention,

Figure 2 is a vertical sectional view to illustrate the locking features,

Figure 3 is a horizontal section showing the shank and head of the lower sash retracted,

Figure 4 is a sectional view taken substantially on the line 44 of Figure 2, Figure 5 is an elevation of one inside upper corner of the lower sash, I Figure 6 is a perspective view of the shank and head for the lower sash, and

Figure 7 is a sectional view taken substantially on the line 7-7 of-Figure 3.

Referring to the drawings in detail, the

numeral 1 designates a window frame in 6 being held in place by screws11 or'other suitable means. A the opening the shank 7 In the adjacent bearing 12 is mounted in 5 at one end to slidably receive side rail of the upper section 2 there is mounted a casing 14 with a key hole 15 and a rectangular opening 16 through whichhead 8 is slidable. A ver tical block-17 is-mounted in the casing 14 adjacent the inside wall thereof and-rises from a partition 18 across the lower portion of the casing 14 immediately above the'opening 16, and forme d with an opening 19 through which a bolt 20 is slidable having a rectangular frame 21 formed on the upper end thereof, through'which a key 22 may be g the bolt 20. The block 17 is provided with'a socket 17 for rotatextended for raisin ably receiving and portion of the key trated to advanta drawings;

This bolt 20 i supporting the inner end 22 in the manner illusgo in Figure 2 of the s normally held downwardly by means of a spring 22 anchored atits bot- H tom end on the partition 18 and at its upper end on a pin 23 p the bolt 20.

rojecting laterally from The sashes are interlocked as shown in is desired to unlock these sashes the key 22 is turnedto raise the bolt 20 out of the opening 9 and then knob 30 Figure 2. When it 7 is pulled to slide the shank 7 so as to withdraw the head 8 from the casing 14 into the pocket or recess 6 and then the sashes are 1 free to'move. To look the sashes it is neces sary to actuate the key 22 to raise the bolt 20 and then thekn to push the shank ob 30 is shoved inwardly 7 and move the head 8 out of the seat 6 through the opening 16 into the bottom of the casing 14 and then by turning the key the spring 22 will force the bolt 20 downwardly into the opening again locking the sash.

9 thus Fromthe foregoing description it will be seen that a window sash lock has been produced which is eXtr emely simple in construc tion, durable, efiicient in operation, and one which can not be 0 of the building.

The present emb penedby persons outside has been described in considerable detail merely for the purposes of exemplification since in actual practice it attains the features of advantage enumerated as desirable in the statement of the invention and the above description.

It will be apparent that changes in the details of construction, and in the comb-ination and arrangement of parts may be resorted to Without departing from the spirit or scope of the invention as hereinafter claimed or sacrificing any of its advantages.

Having thus described my invention, what I claim as new is:

A window sash lock of the character described comprising a casing mounted in an upper sash and having a keyhole therein, said casing being further provided with a bolt receiving opening beneath the keyhole, a partition in the casing above the bolt receiving opening, said partition having an opening therein, a vertically disposed block mount-en the casing on the partition having a socket therein in alignment with the keyhole, a bolt slidably mounted in the lower sash and operable through the bolt receiving opening in the casing, a head on the inner end of the bolt having an opening therein registerahle with the opening' in the partition, a bolt mounted in the casing and slidable through the part tion opening for engas'enien in the head opening in a manner to retain said head in the casing, a frame on one end oi. the second named bolt for operative engagement by an actuating key for withdrawing the second named bolt from the lead opening, the key being insertibie in the casing through the keyhole and ro-tatably engageable in the socket in the block for support thereby, and a spring connected to the second named bolt for yieldingly urging same toward its operative position.

In testimony whereof I my signature.

VJILLIS D. POOLE. 

